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Related Experiment Video

Updated: Feb 1, 2026

Pedicle Screw Placement Using an Augmented Reality Head-Mounted Display in a Porcine Model
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An Innovative Technique for Craniocaudal Pedicle Screw Guidance: A Technical Note.

Sanjay Yadav1, Saurabh Singh1

  • 1Department of Orthopedics, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, India.

Techniques in Orthopaedics (Rockville, Md.)
|December 14, 2018
PubMed
Summary

This study introduces a novel technique for precise pedicle screw placement in spine surgery. The method utilizes a simple instrument to angulate screws, potentially reducing fluoroscopy time and radiation exposure.

Keywords:
free-hand techniquepedicle anatomypedicle screw instrumentationposterior spinal fixation

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Area of Science:

  • Orthopedic Surgery
  • Spine Surgery
  • Surgical Techniques

Background:

  • Pedicle screw instrumentation is a common practice in spine surgery.
  • Accurate placement requires intraoperative imaging, typically fluoroscopy in two planes.
  • Current methods lead to increased operative time and radiation exposure.

Purpose of the Study:

  • To present a simple technique for angulating pedicle screws in the cephalocaudal direction.
  • To reduce reliance on image intensification during pedicle screw placement.
  • To potentially decrease operative time and radiation exposure in spine surgery.

Main Methods:

  • A novel surgical pearl technique is described.
  • Utilizes readily available instruments on the operating table.
  • Aims to guide pedicle screw angulation without multiple imaging planes.

Main Results:

  • The technique facilitates cephalocaudal angulation of pedicle screws.
  • Potential for reduced intraoperative fluoroscopy usage.
  • May expedite the overall surgical procedure.

Conclusions:

  • This simple instrument-based technique offers an alternative for pedicle screw angulation.
  • It may improve efficiency and reduce radiation exposure in spine surgery.
  • Further studies could validate its widespread applicability and impact.